From a noble family. Dubrovin was born in 1855 in Kungur (Perm' region). He graduated from Medico-Surgical Academy in St. Petersburg. Served as a medical officer, worked in orphanages and in the Cesarevitch Nicolas Artisan School, then started private medical practice. In 1901, Dubrovin became a member of the first Russian monarchic organization, Russian Assembly. In 1905, he organized and became a head of the Central Council of the Union of the Russian People and also an editor of its newspaper, "Russian Banner." According to his own words, the idea to create the Union came to his mind immediately after the Bloody Sunday: «I experienced a true urge on January 9, I got into a catastrophe near Krasnye Vorota. I saw blood, I saw dead bodies, and my carriage, when I was back home, was covered with blood. This had shocked me so much that I started thinking about this and started searching for a way out of this situation and I believed that I will be able to prevent such pictures as that I saw on January 9 by creating the Union."; Dubrovin's political ideal may be described with Uvarov's famous triad, "Orthodoxy, Autocracy, and Nationality." He sharply criticized Witte's politics for his striving to put limits on Russian autocracy. He even wrote the political pamphlet, "The Mystery of Fate (Fantasy-Reality)" against the Prime Minister, in which he presented Witte as Antichrist. During the Revolution of 1905-1907, Dubrovin became an organizer of fighting squads against revolutionaries. As a convinced member of Black Hundred, who believed that the Revolution was Jewish in its nature, he urged people to boycott goods and services provided by Jews. His negative attitude towards Stolypin's agrarian reform became the reason of their mutual political antagonism, despite of the fact that Dubrovin took medical care of injured people after terrorists blew up Stolypin's dacha on December 12, 1906. Particularly because of this antagonism the "Russian Banner" newspaper was often persecuted by the censorship.; Since 1907, there were certain difficulties inside the Union of the Russian People, which in 1912 caused its split into the radical All-Russian Dubrovin's Union of the Russian People and Markov's Union of the Russian People, more loyal to the politics of the Government. Few years later, the splash of nationalism during the World War I contributed to their partial reconciliation. In 1909, Dubrovin was accused in murdering M.Ia. Herzenstein, a Constitutional Democrat and a member of the State Duma. After the February Revolution of 1917, he was finally arrested and put in jail to the Peter and Paul Fortress on a charge of that murder, implication in the murder of the other two members of the Duma, G.B. Iollas and A.L. Karavaev, and in two murderous assaults against Witte. However, the Extraordinary Commission of the Provisional Government claimed absence of crime in his acts. On October 14, 1917, he was set free.; On October 21, 1920, Dubrovin was arrested again, this time by the All-Russian Special Commission for Combating Counter-revolution and Sabotage (VChK). Nine days later, he was articled for counter-revolution. An investigator considered his guilt proved and made a suggestion to shoot Dubrovin, which was done. The precise date of the execution and the burial place are not known. According to the decision of the Prosecutor General's Office of the Russian Federation from September 7, 1998, Dubrovin was rehabilitated.